| 摘要 |
A maintenance method for a high-volume electrophotographic printer, in which an optimal toner/carrier (T/C) ratio for a primary toner supply is determined. The primary toner supply is first "stressed" to minimize the T/C therein, by developing a series of test patterns which include a series of narrow lines. Printing of narrow lines influences the proportion of relatively small toner particles in the toner supply. After this stressing, new toner particles are gradually introduced into the primary toner supply while a series of test patches is developed and the density of the test patches is monitored.
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